Comment (by Roland Haas):

Ouch, this is caused by strings in machine files? That will be much more of a problem than anticipated. For the ini parser: I would think it should not interpret the strings as anything, just strings. Is there a way to make it treat the input as raw strings.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2760/syntaxwarnings-raised-during-build-process